Help Ukraine

Jarring New Year's Eve quake awakens San Francisco residents early!

Thu, 31 Dec 2020, 16:21
16:21 PM | BY: EARTHQUAKEMONITOR
Location of users reporting this morning's quake in San Francisco
Location of users reporting this morning's quake in San Francisco
San Francisco's earthquake earlier today jolted the city's residents out of bed at 5:41 am, with hundreds of live reports flowing into our online monitoring service at VolcanoDiscovery within minutes after it occurred. Most users classified the intensity as a 3 or 4 on the 12-point Modified Mercalli Scale, considered the most common intensity scale used in seismology.

Reports have come in from all over the city and its surroundings, including Nob Hill, Muir Beach, Sausalito, Castro, San Rafael, Mill valley, Tiburon, Twin Peaks, Napa, Tam Valley, Alameda, Fairfax, Novato, Oakhill, Berkeley, Larkspur and many other areas. Many users described the sensation as garbage trucks passing in front of their homes, often accompanied by a strong bump or a boom. Some thought it was an explosion, while others reported a single big jolt. There were also reports of objects rattling but no serious damage so far. Interestingly, several online reports we received noted how dogs and cats reacted to the quake, even before it was felt by their human owners. Needless to say, hundreds of beds shook and swayed this morning with many alarmed that something or somebody was jumping on their mattress.


While this wasn't a really strong quake in absolute terms, the shallow depth of the quake at 8.9 miles below the surface made it seem stronger than it actually was. Although the quake was right on the San Andreas fault, we're happy to report that there were no reports of damage or casualties. Overall, an interesting way to welcome the last day of the year earlier than foreseen and make people sleepier a bit earlier on New Year's Eve!
If you felt it, report it through our site or app right now!
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic alerts online:
Android | IOS

Earthquake data:
I felt this quake

Date & time: 31 Dec 5:41 am (GMT -8) local time (31 Dec 2020 13:41 GMT)
Magnitude: 3.6
Depth: 14.4 km
Epicenter latitude / longitude: 37.8°N / 122.59°W (North Pacific Ocean, California, United States)
Primary data source: USGS

Previous news

Thu, 31 Dec 2020, 15:05
4.0 quake 31 Dec 11:45 pm (GMT +9)
A magnitude 4.0 earthquake near Nemuro, Nemuro-shi, Hokkaido, Japan, was reported only 12 minutes ago by NIED, considered the main national agency that monitors seismic activity in this part of the world. The earthquake occurred at a moderately shallow depth of 45.9 km beneath the epicenter late at night on Thursday 31 December 2020 at 11:45 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report. ... Read all
Thu, 31 Dec 2020, 10:38
5.3 quake 31 Dec 6:18 pm (GMT +8)
A magnitude 5.3 earthquake near Maumere, East Nusa Tenggara, Indonesia, was reported only 11 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at an intermediate depth of 115 km beneath the epicenter early evening on Thursday 31 December 2020 at 6:18 pm local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report. ... Read all
Show more
Try our free app!
Volcanoes & Earthquakes - new app for Android
Android | iOS version
Why is there advertising on this site?
Support us - Help us upgrade our services!
We truly love working to bring you the latest volcano and earthquake data from around the world. Maintaining our website and our free apps does require, however, considerable time and resources.
We need financing to increase hard- and software capacity as well as support our editor team. We're aiming to achieve uninterrupted service wherever an earthquake or volcano eruption unfolds, and your donations can make it happen! Every donation will be highly appreciated. If you find the information useful and would like to support our team in integrating further features, write great content, and in upgrading our soft- and hardware, please make a donation (PayPal or Online credit card payment).

Planned features:Thanks to your past donations, these features have been added recently:
Download and Upgrade the Volcanoes & Earthquakes app to get one of the fastest seismic and volcano alerts online:
Android | IOS
Thank you!
Copyrights: VolcanoDiscovery and other sources as noted.
Use of material: Most texts and images, in particular photographs, on this website are protected by copyright. Further reproduction and use of without authorization is usually not consented. If you are not sure or need licensing rights for photographs, for example for publications and commercial use, please contact us.
Home | Travel | Destinations | Volcanoes | Photos | Earthquakes | About | Glossary | News | Contact | Privacy | Imprint | EN | DE | EL | ES | FR | IT | RU
Follow us:Follow us on facebookFollow us on InstagramFollow us on TwitterVisit our Youtube channel